TPA6130A2: Power supply capacitors

Gerry Kurz1

Part Number: TPA6130A2

Is there an upper limit to the value of the charge pump flying capacitor and the power supply bypass capacitors (recommend value of 1 uF) and is there any advantage to increase them?

over 3 years ago

0 Ivan Salazar over 3 years ago

TI__Guru** 109865 points

Hi Gerry,

Large cap for supply bypass would benefit on filtering low frequency noise from the source, however if PSRR performance is good enough the large cap may not be required.
As described in the data sheet, you may consider large than 10uF if the application requires it, otherwise 10uF or lower should be OK.

Best regards,
-Ivan Salazar
Applications Engineer

0 Gerry Kurz1 over 3 years ago in reply to Ivan Salazar

Prodigy 50 points

what about the charge pump flying cap, is it ok to use 10 uF for this?

0 Ivan Salazar over 3 years ago in reply to Gerry Kurz1

TI__Guru** 109865 points

Gerry,

10uF cap for charge pump is OK, this cap should be the same as CPVss decoupling cap.

Best regards,
-Ivan Salazar
Applications Engineer

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TPA6130A2: Power supply capacitors